1056696899 has 4 divisors (see below), whose sum is σ = 1059280920. Its totient is φ = 1054112880.

The previous prime is 1056696887. The next prime is 1056696941. The reversal of 1056696899 is 9986966501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9986966501 = 151 ⋅66138851.

It is a cyclic number.

It is not a de Polignac number, because 1056696899 - 2²⁸ = 788261443 is a prime.

It is a super-2 number, since 2×1056696899² = 2233216672712432402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056696859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291397 + ... + 1292214.

It is an arithmetic number, because the mean of its divisors is an integer number (264820230).

Almost surely, 2^1056696899 is an apocalyptic number.

1056696899 is a deficient number, since it is larger than the sum of its proper divisors (2584021).

1056696899 is an equidigital number, since it uses as much as digits as its factorization.

1056696899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584020.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 1056696899 is about 32506.8746421430. The cubic root of 1056696899 is about 1018.5526373718.

The spelling of 1056696899 in words is "one billion, fifty-six million, six hundred ninety-six thousand, eight hundred ninety-nine".